

If the Internet is accessed through a proxy server, then you should check if the proxy has access to the DNS and IP addresses of the Kontur.Extern servers. If the port is closed, contact your system administrator Ħ.Disable your antivirus software and try logging in.ħ.If after opening the port, the error remains, you need to reinstall CryptoPro (see.In the window that opens, check the Telnet Client line. To enable it, you need to go to Start > Control Panel > Programs and Features > Turn Windows features on or off. Telnet in Windows Vista / 7 / 8 / 8.1 / 10 is disabled by default. Otherwise, an error or access denied message will appear. If a console window opens (an empty black window), then the port is open. Start"> "Run", type telnet in the line443 (it is necessary to specify the address of the server on which the user is registered, see Addresses of the servers of the "Kontur.Extern" system). If the message "The page cannot be displayed" appears, then the port is closed.

If the cipher strength is zero, then you need to reinstall CryptoPro (see How to reinstall the CryptoPro program?).ĥ.Check if port 443 (https protocol) is open - a secure channel through which communication with the system server is carried out. The "Cipher strength" item must have a value other than zero. To do this, open the menu Help > About in an Internet Explorer window. If the Internet Explorer diagnostic service cannot display this web page, then you need to go to step 4 of the current instructions. Check and perform all recommended actions using the diagnostic service. Check the address used to log in to the system (see DNS and IP addresses of the Kontur.Extern servers and system services).ģ.

If you do not have an Internet connection, you should contact your system administrator or ISP.Ģ. To eliminate the error, it is necessary (after completing each item, you should repeat attempts to log in to the system):ġ.
